two cisco dte connections

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I have for the hobby two cisco 805 routers. The problem is that I only Have got two dte v.35 cable's. To buy a dce v.35 is to expensive.

I have considered to solder so that to the end of both males have a cross connection. I have used this diagram:

P ------------------- R S ------------------- T R ------------------- P T ------------------- S C ------------------- D D ------------------- C E ------------------- H H ------------------- E Y & U ------------------- V W & AA ------------------- X V ------------------- Y & U X ------------------- W & AA

If I has done that and I give the command show controllers int serial0 one of the cisco router:

Then the result is:

v.35 dte

Even if the cabel end not connected(the male not cconnect to the other male)

I think that there is a hardware protection on the cable but where?